1210120020201 has 16 divisors (see below), whose sum is σ = 1699125185600. Its totient is φ = 763966323648.

The previous prime is 1210120020191. The next prime is 1210120020223. The reversal of 1210120020201 is 1020200210121.

It is not a de Polignac number, because 1210120020201 - 2⁵ = 1210120020169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210120020281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4307146 + ... + 4579491.

It is an arithmetic number, because the mean of its divisors is an integer number (106195324100).

Almost surely, 2^{1210120020201} is an apocalyptic number.

It is an amenable number.

1210120020201 is a deficient number, since it is larger than the sum of its proper divisors (489005165399).

1210120020201 is a wasteful number, since it uses less digits than its factorization.

1210120020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8889048.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1210120020201 its reverse (1020200210121), we get a palindrome (2230320230322).

The spelling of 1210120020201 in words is "one trillion, two hundred ten billion, one hundred twenty million, twenty thousand, two hundred one".